I love that it is easy for customers to track their shipments from order confirmation through delivery! It's also great how they can easily edit tracking information after shipment has been delivered if needed or wanted later down the road (or even immediately).
The only thing about this program was having multiple carriers being able to ship/track items together as well at one time which could be confusing when trying to view all orders shipped during certain times etc but other then that everything else works really good!! Shipping costs have dropped dramatically since using veriship service along side our normal shipping services.